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Quiz

2667 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

All areas2667 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization92 AI-Era Architecture86 Software Architecture & Engineering84 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture90 Data Platform Architecture88 Streaming & Real-Time Data93 Data Governance & Semantics81 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk88
Difficulty Any beginner intermediate advanced

41 questions in Enterprise Architecture.

  1. Capability Maps in EA advanced

    A CIO asks for a capability map of the enterprise. How do you scope it so it is actually used?

    2 min answer eabusiness-architecturepragmatism
  2. EA Metrics advanced

    An architecture practice reports 92% standards compliance (up from 61%), an application inventory at 100% coverage, and 40 reference architectures published. Over the same period, lead time for changes has risen from 9 to 17 days and the change failure rate is flat. What is happening, and what would you measure instead?

    3 min answer ea-metricsgoodhartdora-metricscoordination-cost
  3. EA Metrics advanced

    An enterprise architecture function reports on standards compliance and diagram coverage. Leadership cannot tell whether it is adding value. What should it measure instead?

    2 min answer delhiveryea-metricsoutcomesvalue
  4. EA Metrics advanced

    How would you demonstrate that an architecture practice is worth its cost?

    2 min answer metricsvalueoutcomesportfolio
  5. Enterprise Architecture advanced

    An enterprise architecture function has produced extensive documentation over three years and business leaders question its value. What is the function doing wrong?

    2 min answer enterprise-architecturevaluedecisionsdocumentation
  6. Enterprise Architecture advanced

    You inherit an estate of roughly 400 applications, no reliable inventory, and a mandate to reduce cost and risk. What do you do in the first ninety days?

    2 min answer portfoliorationalisationgovernancemodernization
  7. Enterprise Integration advanced

    A workforce platform must integrate with hundreds of external systems with wildly different reliability. What integration architecture scales, and what does not?

    2 min answer ripplingdeelintegrationisolation
  8. Enterprise Integration advanced Multiple choice

    An ecosystem of many business lines needs to share data and events. Should integration be point-to-point, through a central hub, or event-driven? What decides it?

    2 min answer integrationhubeventscoupling
  9. Enterprise Integration advanced

    An estate has 140 point-to-point integrations between 20 systems. What is the problem and what would you do?

    2 min answer integrationtopologycanonical-modelevents
  10. Enterprise Integration advanced

    An estate has 34 systems, 210 running interfaces, and a proposal to introduce a canonical hub. Before deciding, estimate the annual engineering cost of the current integration surface and how it changes when one system's schema is revised. Which number should decide the proposal?

    3 min answer integrationcanonical-modelestimationchange-amplification
  11. Enterprise Integration advanced

    In 2017 The New York Times described replacing a web of API and feed integrations with a single ordered Kafka log - the Monolog - holding every published asset as the source of truth, with back-end systems consuming from it. What forced that change, what did it cost, and where would copying it be a mistake?

    3 min answer new york timeskafkalog-as-source-of-truthintegration
  12. InnerSource advanced

    You maintain an internal library used by 60 teams. Your team of five also owns two products. Two teams have each opened a pull request adding something you do not want in the library - one a caching layer with its own configuration surface, the other a second serialisation format. Both teams are blocked on the outcome and both say innersource means they can contribute. Walk me through how you run this.

    3 min answer innersourcemaintainershipcontribution-contractreview-capacity